CNN has reached out to the US attorney's office in Massachusetts for more information. It is unclear if Vazquez has been assigned legal representation.

Vazquez was one of seven crew members sailing Sunday aboard the Captain Billy Haver, a fishing vessel about 55 miles off Massachusetts, according to an affidavit filed by a special agent in the US Coast Guard.

According to the affidavit, a crew member said he heard yelling coming from the boat's deck and ran to investigate. He was struck in the back of the head three times and fell down. The crew member said he looked up to see Vazquez with a knife in one hand and a hammer in another, according to the affidavit. Another crew member was lying on the deck with blood coming out of his mouth, the crew member said.

Vazquez then allegedly struck a third crew member with a hammer before climbing up the ship's mast to escape other crewmen who tried to capture him, according to the US attorney's office.

A German cruise ship, the Mein Schiff 6, responded to a distress call from the fishing boat's captain, the affidavit said.

Two of the wounded crew members were taken aboard the cruise ship. One was pronounced dead at the scene, according to the affidavit.

Previous arrest

Court documents indicate that Vazquez was in the United States illegally.

In March, Vazquez was arrested in Newport News, Virginia, accused of abduction by force, intimidation, or deception, according to the affidavit. He was released on bond. On April 2, he was placed in immigration proceedings but released from US Immigration and Customs Enforcement custody on April 23, the affidavit said.

If convicted, Vazquez faces up to life in prison for the murder charge and up to 20 years in prison for attempted murder. Lelling's office said Vazquez would be subject to deportation proceedings after completing any sentence imposed.